Select all across all pages

I wish to "select all" sales in the "Pick" or "Pack" list, and by all I mean every single one, not all of the 25 initially visible, or the maximum of 300. When there is a large amount of items, I must also spend a long time scrolling through to the very bottom in order to perform a bulk action. The majority of bulk actions are made to long lists of items and having to scroll past every one of them takes time. What is the beneifit of solving this problem? If I wish to mark all sales as "dispatched" or "pack" I have two options The first is to first go to the relevant list, wait for the page to load, update the display number to the maximum and then wait again for the page to load fully before attempting to hit the "Select All" option, if I fail to wait then the page may jump and I will untick one of the filter options. The second is to select all 25, scroll to the bottom, mark as pack or dispatch, navigate back to the list, select the next 25 and repeat. This is a very tedious process and feels like a waste of time, as it is part of a continuous and ongoing task it has become very frustrating and I am reminded of this missing option every couple of days.